n=int(input())
if n>=400 and n<=599:
    print("8")
elif n>=600 and n<=799:
    print("7")
elif n>=800 and n<=999:
    print("6")
elif n>=1000 and n<=1199:
    print("5")
elif n>=1200 and n<=1399:
    print("4")
elif n>=1400 and n<=1599:
    print("3")
elif n>=1600 and n<=1799:
    print("2")
elif n>=1800 and n<=1999:
    print("1") n=int(input()) n int(input()) int input() input if n>=400 and n<=599:
    print("8")
elif n>=600 and n<=799:
    print("7")
elif n>=800 and n<=999:
    print("6")
elif n>=1000 and n<=1199:
    print("5")
elif n>=1200 and n<=1399:
    print("4")
elif n>=1400 and n<=1599:
    print("3")
elif n>=1600 and n<=1799:
    print("2")
elif n>=1800 and n<=1999:
    print("1") n>=400 and n<=599 n>=400 n 400 n<=599 n 599 print("8") print "8" elif n>=600 and n<=799:
    print("7") n>=600 and n<=799 n>=600 n 600 n<=799 n 799 print("7") print "7" elif n>=800 and n<=999:
    print("6") n>=800 and n<=999 n>=800 n 800 n<=999 n 999 print("6") print "6" elif n>=1000 and n<=1199:
    print("5") n>=1000 and n<=1199 n>=1000 n 1000 n<=1199 n 1199 print("5") print "5" elif n>=1200 and n<=1399:
    print("4") n>=1200 and n<=1399 n>=1200 n 1200 n<=1399 n 1399 print("4") print "4" elif n>=1400 and n<=1599:
    print("3") n>=1400 and n<=1599 n>=1400 n 1400 n<=1599 n 1599 print("3") print "3" elif n>=1600 and n<=1799:
    print("2") n>=1600 and n<=1799 n>=1600 n 1600 n<=1799 n 1799 print("2") print "2" elif n>=1800 and n<=1999:
    print("1") n>=1800 and n<=1999 n>=1800 n 1800 n<=1999 n 1999 print("1") print "1" n=int(input()) int(input()) n
n=int(input())
if n>=400 and n<=599:
    print("8")
elif n>=600 and n<=799:
    print("7")
elif n>=800 and n<=999:
    print("6")
elif n>=1000 and n<=1199:
    print("5")
elif n>=1200 and n<=1399:
    print("4")
elif n>=1400 and n<=1599:
    print("3")
elif n>=1600 and n<=1799:
    print("2")
elif n>=1800 and n<=1999:
    print("1")